Please use this identifier to cite or link to this item: https://ktisis.cut.ac.cy/handle/10488/10107
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dc.contributor.authorBellas, Dimitris V.-
dc.contributor.authorToliopoulos, Dimosthenis-
dc.contributor.authorKalfagiannis, Nikolaos-
dc.contributor.authorSiozios, Anastasios-
dc.contributor.authorNikolaou, Petros-
dc.contributor.authorKelires, Pantelis C.-
dc.contributor.authorKoutsogeorgis, Demosthenes C.-
dc.contributor.authorPatsalas, Panos A.-
dc.contributor.authorLidorikis, Elefterios-
dc.date.accessioned2017-06-06T09:30:40Z-
dc.date.available2017-06-06T09:30:40Z-
dc.date.issued2017-05-30-
dc.identifier.citationThin Solid Films, 2017, vol. 630, pp. 7-24en_US
dc.identifier.issn0040-6090-
dc.description.abstractNano-structuring of metals is one of the greatest challenges for the future of plasmonic and photonic devices. Such a technology calls for the development of ultra-fast, high-throughput and low cost fabrication techniques. Laser processing accounts for the aforementioned properties, representing an unrivalled tool towards the anticipated arrival of modules based in metallic nano-structures, with an extra advantage: the ease of scalability. Specifically, laser nano-structuring of an ultra-thin metal film or an alternating metal film on a substrate/metal film on a substrate results respectively on surface (metallic nanoparticles on the surface of the substrate) or subsurface (metallic nanoparticles embedded in a dielectric matrix) plasmonic patterns with many applications. In this work we investigate theoretically the photo-thermal processes involved in surface and sub-surface plasmonic nano-structuring and compare to experiments. To this end, we present a design process and develop functional plasmonic nano-structures with pre-determined morphology by tuning the annealing parameters like the laser fluence and wavelength and/or the structure parameters like the thickness of the metallic film and the volume ratio of the metal film on a substrate-metal composite. For the surface plasmonic nano-structuring we utilize the ability to tune the laser's wavelength to either match the absorption spectral profile of the metal or to be resonant with the plasma oscillation frequency, i.e. we utilize different optical absorption mechanisms that are size-selective. Thus, we overcome a great challenge of laser induced self assembly by combining simultaneously large-scale character with nanometer scale precision. For subsurface plasmonic nano-structuring, on the other hand, we utilize the temperature gradients that are developed spatially across the metal/dielectric nano-composite structure during the laser treatment. We find that the developed temperature gradients are strongly depended on the nanocrystalline character of the dielectric host which determines its thermal conductivity, the composition of the ceramic/metal and the total thickness of the nano-composite film. The aforementioned material parameters combined with the laser annealing parameters can be used to pre-design the final morphology of the sub-surface plasmonic structure. The proposed processes can serve as a platform that will stimulate further progress towards the engineering of plasmonic devices.en_US
dc.formatpdfen_US
dc.language.isoenen_US
dc.publisherElsevier B.V.en_US
dc.relation.ispartofThin Solid Filmsen_US
dc.rights© The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND licenseen_US
dc.subjectLaser annealingen_US
dc.subjectNanopatterningen_US
dc.subjectNanophotonicsen_US
dc.subjectNanostructureen_US
dc.subjectOptothermalen_US
dc.subjectPlasmonic writingen_US
dc.subjectPlasmonicsen_US
dc.titleSimulating the opto-thermal processes involved in laser induced self-assembly of surface and sub-surface plasmonic nano-structuringen_US
dc.typeArticleen_US
dc.collaborationUniversity of Ioanninaen_US
dc.collaborationNottingham Trent Universityen_US
dc.collaborationCyprus University of Technologyen_US
dc.collaborationAristotle University of Thessalonikien_US
dc.subject.categoryMechanical Engineeringen_US
dc.journalsOpen Accessen_US
dc.countryGreeceen_US
dc.countryUnited Kingdomen_US
dc.countryCyprusen_US
dc.subject.fieldEngineering and Technologyen_US
dc.publicationPeer Revieweden_US
dc.identifier.doi10.1016/j.tsf.2016.12.046en_US
dc.relation.volume630en_US
cut.common.academicyear2016-2017en_US
dc.identifier.spage7en_US
dc.identifier.epage24en_US
item.cerifentitytypePublications-
item.fulltextWith Fulltext-
item.grantfulltextopen-
item.languageiso639-1en-
item.openairecristypehttp://purl.org/coar/resource_type/c_6501-
item.openairetypearticle-
crisitem.journal.journalissn0040-6090-
crisitem.journal.publisherElsevier-
crisitem.author.deptDepartment of Mechanical Engineering and Materials Science and Engineering-
crisitem.author.deptDepartment of Mechanical Engineering and Materials Science and Engineering-
crisitem.author.facultyFaculty of Engineering and Technology-
crisitem.author.facultyFaculty of Engineering and Technology-
crisitem.author.orcid0000-0002-0268-259X-
crisitem.author.parentorgFaculty of Engineering and Technology-
crisitem.author.parentorgFaculty of Engineering and Technology-
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